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URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 12
NWS Storm Prediction Center Norman OK
910 PM CDT Sun Mar 18 2018
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Central and southwest Louisiana
Extreme southeast Texas
* Effective this Sunday night and Monday morning from 910 PM
until 100 AM CDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
Isolated damaging wind gusts to 70 mph possible
A tornado or two possible
SUMMARY...Clusters of thunderstorms, some with embedded supercell
characteristics, will continue to spread eastward from southeast
Texas into Louisiana overnight. The strongest storms will be
capable of producing large hail and damaging winds, and an isolated
tornado cannot be ruled out.
The severe thunderstorm watch area is approximately along and 65
statute miles east and west of a line from 30 miles north northeast
of Natchitoches LA to 60 miles south southwest of Fort Polk LA. For
a complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU2).
REMEMBER...A Severe Thunderstorm Watch means conditions are
favorable for severe thunderstorms in and close to the watch area.
Persons in these areas should be on the lookout for threatening
weather conditions and listen for later statements and possible
warnings. Severe thunderstorms can and occasionally do produce
OTHER WATCH INFORMATION...CONTINUE...WW 11...
AVIATION...A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector